Originally Posted by mike837go
I'll argue with Bassdogs and suggest that there is no kill like overkill when you are dealing with the health and safety of your family and friends!
1. Bring the water heater on line.
2. Flush everything with tap water
3. Sanitize the whole water system
4. Add a small amount of bleach to the FW tank with every refill.
As to #4 - make sure it is a SMALL amount, if you do this. Swimming pools are normally between 2-5 part per million. Anything above that, and a public pool will shut down due to safety concerns. Tap water has far, far less.
So, how much? If 1/4 cup per 16 gal. makes a 50 ppm (parts-per-million) concentration (per Jayco), that means you need 25 times less, or about 1/2 TEASPOON for every 16 gal. your tank holds. Reality is, since the water starts out clean, is that you can use as little as 1/8th teaspoon and still get effective killing! Going heavier just risks ruining your heater, and your family!
(the above assumes you already previously sanitized, you have to sanitize and rinse first to kill whatever might be currently growing, then you can use a very low dose to maintain things. But really, the above is not needed at all....)